| 摘要 |
<p>PURPOSE:To dissolve wax, which separated out into the fuel, and prevent engine trouble by a method wherein the fuel supplying system of diesel engine is provided with a fuel transparence detector to operate a fuel heater upon detecting a transparence lower than a preset value. CONSTITUTION:When wax separates out into the fuel in a filter 1 due to atmospheric temperature decrease or the like, the transparence of the fuel is reduced and, therefore, the light receiving amount of an amount of light detecting element 5 is reduced. When the light receiving amount is reduced to a value lower than a preset value, an actuator 14 operates to close a switch 13 and the heater 11 is conducted. The fuel is heated by the conduction of the heater 11 and the wax, separating out into the fuel, is dissolved into the fuel. When the transparence of the fuel becomes higher than the preset value due to the dissolution of the wax, the amount of light detecting element 5 detects it and the actuator 14 is operated reversely to open the switch. According to the opening of the switch, the heater 11 stops theoperation thereof. Thus, the dissolution of the wax is effected properly and the trouble of the engine may be prevented.</p> |
